The symbiotic relationship between nitrogen-fixing bacteria and leguminous plants involves complex signaling and structural modifications in the root. Which of the following accurately describes the role of NOD factors in this interaction?
Plant hormones that promote bacterial growth within root nodules
Bacterial signals that trigger root hair curling and cortical cell division
Enzymes produced by the plant to break down bacterial cell walls
Proteins that transport nitrogen from bacteria to plant cells
Related Questions
Pneumatophores are specialized aerial roots found in certain plants that grow in:
Desert regions
Mountain slopes
Grasslands
Swampy and intertidal areas
In maize and sugarcane, the supporting roots that arise from the lower nodes of the stem are:
Prop roots
Climbing roots
Stilt roots
Clinging roots
Primary roots and its branches constitute the
Tap root system
Adventitious root system
Tertiary root system
Fibrous root system
Which type of root develops from the stem base of plants like the banyan tree, providing additional support?
Adventitious roots
Tap roots
Fibrous roots
Storage roots
Fibrous root system originates from the base of
Root
Stem
Leaves
Lamina
If a primary root continues to grow, the type of root system will be known as
Secondary
fibrous
tap
stilt
(A) Fibrous root system is adventitious in origin
(R) All adventitious roots are fibrous
Both (A) and (B) are correct
Both (A) and (B) are incorrect
(A) is true but (R) is false
(A) is false but (R) is true
(A) Fibrous root system is adventitious in origin
(R) All adventitious roots are fibrous
Both (A) and (B) are correct
Both (A) and (B) are incorrect
(A) is true but (R) is false
(A) is false but (R) is true
Roots are absent in
Wolffia
Podostemon
Pistia
Lemna
The roots that emerge from the lower part of the stem, often near the soil surface, are known as:
Adventitious roots
Fibrous roots
Tap roots
Aerial roots
